CN111169003A

CN111169003A - 3D printing equipment

Info

Publication number: CN111169003A
Application number: CN202010045621.7A
Authority: CN
Inventors: 高荟卓; 蒙南华; 周志军; 王冕
Original assignee: Kocel Intelligent Foundry Industry Innovation Center Co Ltd
Current assignee: Kocel Intelligent Foundry Industry Innovation Center Co Ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-05-19

Abstract

The present invention relates to a 3D printing apparatus. The 3D printing device comprises: the printing device comprises a supporting frame, a printing assembly and a work box mechanism, wherein the printing assembly is integrated on the supporting frame; the printing assembly comprises symmetrically arranged blanking guide rails, a plurality of printing guide rails, a plurality of blanking mechanisms and a plurality of printing mechanisms, each printing guide rail and each blanking mechanism are respectively arranged between two blanking guide rails, and at least one printing guide rail is provided with one printing mechanism in a sliding manner; the two blanking guide rails are arranged on two symmetrical sides of the supporting frame; the work box mechanism comprises a work box and a jacking piece, the work box and the jacking piece are integrally arranged, the jacking piece is used for jacking a bottom plate of the work box to lift along the vertical direction, and the work box and the jacking piece are movably arranged in the supporting frame in a penetrating mode. 3D printing apparatus's printing efficiency is higher, and the product precision is higher.

Description

3D printing equipment

Technical Field

The invention relates to the technical field of additive manufacturing, in particular to 3D printing equipment.

Background

In the technical field of additive manufacturing, a layer of raw materials is laid by a blanking mechanism, a layer of product outline shape is printed by a printing mechanism, the steps are repeated in such a way, the raw materials are overlapped on a working box layer by layer to form the printing of the whole product, finally the product is removed and cleaned by a carrying working box, and then the printing is continued by other working boxes. In the process, although the 3D printing technology can realize one-step molding of a product with a complex structure, the printing speed is relatively low due to the limitation of the printing mode and the work box switching mode, so that the printing efficiency is affected, and the problem of low precision of the molded product also exists.

Disclosure of Invention

Based on this, it is necessary to provide a 3D printing apparatus with higher printing efficiency and higher product precision to solve the problems of low printing efficiency and low product precision of the 3D printing apparatus in the prior art.

A 3D printing device, the 3D printing device comprising: the printing device comprises a supporting frame, a printing assembly and a work box mechanism, wherein the printing assembly is integrated on the supporting frame; the printing assembly comprises symmetrically arranged blanking guide rails, a plurality of printing guide rails, a plurality of blanking mechanisms and a plurality of printing mechanisms, each printing guide rail and each blanking mechanism are respectively arranged between two blanking guide rails, and at least one printing guide rail is provided with one printing mechanism in a sliding manner; the two blanking guide rails are arranged on two symmetrical sides of the supporting frame; the work box mechanism comprises a work box and a jacking piece, the work box and the jacking piece are integrally arranged, the jacking piece is used for jacking a bottom plate of the work box to lift along the vertical direction, and the work box and the jacking piece are movably arranged in the supporting frame in a penetrating mode.

In one embodiment, at least one cross beam is arranged between the two blanking guide rails, and each cross beam is correspondingly provided with one printing guide rail.

In one embodiment, the work box mechanism further comprises a moving member, and the moving member is connected with the jacking member and used for carrying the work box and the jacking member.

In one embodiment, the moving member comprises a slide rail, the slide rail extends and is laid in the supporting frame, and the jacking member is movably arranged on the slide rail.

In one embodiment, the bottom of the jacking piece is provided with a pulley, and the pulley is matched with the sliding rail.

In one embodiment, the moving member comprises a roller, and the roller is mounted at the bottom of the jacking member.

In one embodiment, a roller way is arranged inside the supporting frame and used for carrying the work box.

In one embodiment, the 3D printing apparatus further comprises a cleaning solution tank mounted on the support frame and disposed proximate to the printing mechanism.

In one embodiment, the 3D printing apparatus further includes a material mixing mechanism disposed outside the support frame.

In one embodiment, a buffer storage bin is further arranged on the supporting frame, and the buffer storage bin is connected with the material mixing mechanism and used for feeding the material to the blanking mechanism.

According to the 3D printing device, the blanking guide rail, the printing mechanism and the blanking mechanism of the printing assembly are integrally arranged on the supporting frame, so that the printing mechanism and the blanking mechanism can synchronously reciprocate along the blanking guide rail, and the printing efficiency of the 3D printing device is effectively improved; the working box and the jacking piece are integrally arranged into a whole, and the whole body is movably arranged in the supporting frame in a penetrating mode, so that the positioning times of the working box and the jacking piece can be reduced, the positioning requirement is lowered, the bottom plate of the working box can be guaranteed to be stable in level and not to be influenced by the positioning of the jacking piece and the bottom plate of the working box, and the printing precision with higher efficiency can be guaranteed while the printing can be achieved rapidly and continuously.

Drawings

Fig. 1 is a schematic perspective view of a 3D printing apparatus according to an embodiment.

Fig. 2 is a schematic perspective view of a work box mechanism according to an embodiment.

FIG. 3 is a schematic structural view of a jacking member in one state according to an embodiment.

FIG. 4 is a schematic diagram of a jacking member in another state according to an embodiment.

Fig. 5 is a schematic perspective view of a work box mechanism according to another embodiment.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, a 3D printing apparatus, the 3D printing apparatus comprising: the printing device comprises a supporting frame, a printing assembly and a work box mechanism, wherein the printing assembly is integrated on the supporting frame; the printing assembly comprises symmetrically arranged blanking guide rails, a plurality of printing guide rails, a plurality of blanking mechanisms and a plurality of printing mechanisms, each printing guide rail and each blanking mechanism are respectively arranged between two blanking guide rails, and at least one printing guide rail is provided with one printing mechanism in a sliding manner; the two blanking guide rails are arranged on two symmetrical sides of the supporting frame; the work box mechanism comprises a work box and a jacking piece, the work box and the jacking piece are integrally arranged, the jacking piece is used for jacking a bottom plate of the work box to lift along the vertical direction, and the work box and the jacking piece are movably arranged in the supporting frame in a penetrating mode.

The 3D printing apparatus is described below with reference to specific embodiments to further understand the inventive concept of the 3D printing apparatus. Referring to fig. 1, a 3D printing apparatus 10, the 3D printing apparatus 10 includes: a support frame 100, a printing assembly 200 integrally arranged on the support frame, and a work box mechanism 300; the printing assembly 200 includes symmetrically disposed blanking guide rails 210, a plurality of printing guide rails 220, a plurality of blanking mechanisms 230, and a plurality of printing mechanisms 240, each printing guide rail 220 and each blanking mechanism 230 are respectively disposed between two blanking guide rails 210, and at least one printing guide rail 220 is slidably disposed with one printing mechanism 240; the two blanking guide rails 210 are arranged at two symmetrical sides of the supporting frame 100; the work box mechanism 300 comprises an integrated work box 310 and a jacking piece 320, the jacking piece 320 is used for jacking the bottom plate of the work box 310 is lifted along the vertical direction, and the work box 310 and the jacking piece 320 are movably arranged in the supporting frame 100 in a penetrating mode.

Specifically, in one embodiment, please continue to refer to fig. 1, the supporting frame 100 includes a plurality of supporting posts 110 and connecting rods 120, wherein the supporting posts 110 are disposed at intervals and connected to each other through the connecting rods 120. Preferably, the support frame 100 is provided with three columns in the X-axis direction and four columns in the Y-axis direction. The supporting frame 100 formed in this way is relatively more stable in structure, and can effectively save equipment materials. Further, the two symmetrical sides of the supporting frame 100 are respectively provided with a blanking guide rail 210. Specifically, two blanking rails 210 are provided at the top ends of the support posts 110 of the support frame 100 in the Y-axis direction. Wherein, the printing mechanism 240 stores therein a spray material for printing to form the product profile. The blanking mechanism 230 has a base material stored therein for laying a product layer, for example, the base material is sand. In one embodiment, the support frame 100 has an inlet and an outlet on two symmetrical sides. Specifically, the entrance and exit are formed by two pillars arranged at an interval, wherein the width of the work box mechanism 300 is required to be smaller than the width of the entrance and exit, so that the work box mechanism 300 can slide into the inside of the support frame from one side of the support frame 100, so that the printing mechanism and the blanking mechanism print products on the work box, and slide out to the other side of the support frame after printing, or enter from the same side and slide out, and the moving path of the specific work box mechanism can be determined according to the actual process arrangement, which is not limited in this embodiment. The work box of work box mechanism 300 is for bearing the mechanism of printing the product, and the jacking piece is the mechanism of drive work box bottom plate, when printing mechanism and blanking mechanism cooperation print the during operation, the product shaping on the work box reduces work box bottom plate height gradually through jacking mechanism to can pile up the printing product gradually on the bottom plate of work box.

In one embodiment, the work box 310 is integrally disposed on top of the jack 320. Thus, by integrating the lift 320 with the work box 310 as a unitary structure, a quick integral transfer of the work box mechanism may be facilitated. Compare like this in the mode of only shifting the work box among the prior art, can effectively practice thrift and print latency, promptly after the work box that finishes printing shifts out with the jacking piece is whole, empty work box and jacking piece can take one's place next, and the location requirement reduces, can guarantee that work box bottom plate level is stable and not influenced by jacking piece and work box bottom plate status to when can realizing quick continuous printing, guarantee more efficient printing accuracy.

In one embodiment, referring to fig. 2, the work box mechanism 300 further includes a mounting platform 330, and the lifting member 320 is disposed on the mounting platform 330. By providing the mounting platform 330, reliable support of the jack 320 is facilitated. In one embodiment, the work box 310 includes a housing 311 and a bottom plate 312 movably disposed in the housing, and the bottom plate 312 is fixedly connected to the lifting member 320. By arranging the shell 311, the printed products on the bottom plate 312 can be conveniently prevented from overflowing, and the cleanness and sanitation of the production space are guaranteed. And be favorable to fixing a position between bottom plate and the jacking piece through with bottom plate 312 and jacking piece 320 fixed connection and confirm, be favorable to guaranteeing that the bottom plate surface is level and smooth stable to can avoid needing many times to fix a position and the easy unstable problem in bottom plate surface that appears when can avoid because bottom plate and jacking piece activity butt joint, thereby can ensure the product and print the precision.

In one embodiment, referring to fig. 3 and 4, the lifting element 320 includes a transmission mechanism 321 and a moving mechanism 322 connected to each other, and a fixing plate 323 supporting and disposing the transmission mechanism and the moving mechanism. In one embodiment, the transmission 321 includes a pneumatic cylinder or a motor drive. In one embodiment, the motion mechanism 322 comprises a hydraulic jack or a lead screw jack. The moving mechanism 322 includes a lower jacking mechanism 3221 and an upper jacking mechanism 3222 connected to the transmission mechanism 321, the lower jacking mechanism 3221 is connected to the fixing plate 323, and the upper jacking mechanism 3222 is connected to the bottom plate 312 of the work box. When the bottom plate of the work box needs to be raised, the transmission mechanism 321 is started, the upper jacking mechanism 3222 and the lower jacking mechanism 3221 extend simultaneously, and when the bottom plate of the work box needs to be lowered, the upper jacking mechanism 3222 and the lower jacking mechanism 3221 contract simultaneously. Therefore, the lower jacking mechanism 3221 and the upper jacking mechanism 3222 are driven by the transmission mechanism 321 to extend and contract, and then the bottom plate of the working box is driven to ascend or descend.

Preferably, the jacking member 320 further comprises a plurality of balance lifting columns 324 slidably connected to each other and a plurality of sliding blocks 325 mounted on the transmission mechanism 321, and each sliding block 325 is connected to one balance lifting column 324. The balance column 324 close to the bottom plate of the work box is connected with the bottom plate of the work box, and the balance lifting column 324 close to the fixing plate 323 is connected with the fixing plate 323. For example, the balance lifting column 324 connected to the fixed plate and the balance column 324 connected to the bottom plate of the work box are directly slidably connected to each other. This structure is similarly understood to mean that the strings of pipe are nested within each other, and can be extended or retracted relative to each other. For example, a third balancing lifting column is disposed between the balancing lifting column 324 connected to the fixing plate and the balancing column 324 connected to the bottom plate of the work box. The number of the third balance lifting columns can be increased according to the movement stroke of the movement mechanism. Preferably, the sliding blocks are arranged on two symmetrical sides of the top of the transmission mechanism 321, and each sliding block is in fit connection with a corresponding balance lifting column. When the bottom plate of the work box needs to be lifted, the transmission mechanism 321 is started to drive the movement mechanism 322 to ascend, so that the height position of the transmission mechanism is lifted, the balance columns connected with the sliding blocks are lifted, other balance columns connected with the balance columns are lifted in a staggered mode, and the bottom plate of the whole work box is supported. In a similar way, when the bottom plate of the working box needs to descend, the transmission mechanism drives the balance lifting columns to be close to each other and retract, and therefore the bottom plate of the working box is lowered to the height position synchronously.

In order to support the work box more stably, in a preferred embodiment, please continue to refer to fig. 2, a bracket 340 is disposed on the mounting platform 330, and the bracket 340 is connected to the housing 311 of the work box. Specifically, the bracket 340 is mounted to the bottom edge of the housing. The specific connection mode may be a fixed connection mode or a detachable connection mode, and the specific structure is not limited in this embodiment. Thus, the work box is more stably supported by the bracket 340. To facilitate manual pushing and pulling of the work box mechanism, in a preferred embodiment, the bracket 340 is provided with a push-pull handle 341. Thus, the worker can push the whole work box mechanism to move only by pushing and pulling the handle 341.

In one embodiment, a plurality of printing guide rails 220 and a plurality of blanking mechanisms 230 are respectively disposed between the two blanking guide rails 210. The specific number of the printing guide rails 220 and the blanking mechanisms 230 is set according to the actual printing requirement. In one embodiment, the blanking guide 210 and the printing guide 220 are motion modules. For the structure of the motion module, reference may be made to the motion module structure of the printing head and the sand spreader of the sand mold 3D printer in the prior art, which is not described in detail herein. In one embodiment, each printing guide rail and each blanking mechanism are arranged between two symmetrically arranged blanking guide rails at intervals. That is, each printing guide rail and each blanking mechanism may be connected to each other or disposed at an interval, and the installation manner of each printing guide rail and each blanking mechanism is not particularly limited in this embodiment since the printing guide rails and the blanking mechanisms can synchronously reciprocate along with the movement of the blanking guide rails. Therefore, the blanking guide rails which are symmetrically arranged are started, so that the blanking mechanism arranged on the blanking guide rails can be driven to synchronously move with the printing guide rails. After the stroke printing work in one direction is finished, the blanking mechanism and the printing guide rail can synchronously move in the opposite direction correspondingly by controlling the blanking guide rail to move in the opposite direction. That is, the reciprocating motion of the blanking mechanism and the printing guide rail can be realized by controlling the motion direction of the blanking guide rail to move in the positive and negative directions within a certain travel range. In the process, a plurality of blanking mechanisms and printing guide rails can be installed according to actual printing requirements, so that printing and blanking can be carried out synchronously, the whole printing process is continuously carried out, and the printing efficiency can be effectively improved. It should be noted that, when the number of the printing guide rails is greater than or equal to 2, at least one of the printing guide rails 2 is ensured to be provided with the printing mechanism in a sliding manner, so that the printing mechanism can move along the printing guide rails to realize printing work in a direction perpendicular to the shakeout direction. That is, there is a portion of the printing guide rail that may not be provided with a mounting printing mechanism, which will be described in connection with the following embodiments.

Example 1:

at least one beam is arranged between the two blanking guide rails, and each beam is correspondingly provided with one printing guide rail. That is, the cross member is a structure supporting the print guide rail. Like this, can be convenient for install more steadily and print the guide rail through setting up the crossbeam, and can effectively avoid receiving the influence when printing the mutual motion between guide rail and the blanking guide rail each other. It should be noted that the printing guide rail may be directly disposed between the two blanking guide rails, that is, it is not necessary to provide a beam support, but the arrangement of the beam can further ensure that the printing guide rail and the blanking guide rail are influenced with each other in motion.

Example 2:

the blanking mechanism is arranged on the printing guide rail, the two blanking guide rails are arranged between the two printing guide rails in a sliding mode, and one side, deviating from the printing guide rail, of the cross beam is provided with the blanking mechanism. In the embodiment, the printing mechanism is integrated with the blanking mechanism through the cross beam, and the printing mechanism moves back and forth along the blanking guide rail along with the blanking mechanism. That is, in normal operation, the blanking mechanism moves in the AB direction to perform blanking, and in the process, the printing mechanism moves together with the blanking mechanism, but the printing mechanism does not perform printing, and printing is performed when the printing mechanism moves in the CD direction as the blanking mechanism returns. Namely, the blanking mechanism carries out blanking operation in the process, and then carries out printing operation in the return stroke.

Example 3:

two the crossbeam slides between the blanking guide rail and is provided with two, blanking mechanism sets up in two between the crossbeam, and each the crossbeam deviates from one side of blanking mechanism all installs printing mechanism. In this embodiment, the printing mechanisms are respectively arranged on two sides of the blanking mechanism and integrated on the same blanking guide rail, and the two printing mechanisms move back and forth along the blanking guide rail along with the blanking mechanism. Namely, when the blanking mechanism moves along the EF direction to perform blanking during normal operation, the left printing mechanism moves along with the blanking mechanism to perform printing; and when the blanking mechanism returns to blank along the GH direction, the right printing mechanism moves along with the blanking mechanism and prints. That is, the printing is performed while the blanking operation is performed in the process of the blanking mechanism, and then the printing operation is performed simultaneously in the same manner as in the return stroke. Therefore, continuous printing operation can be realized, printing is not required to be carried out after blanking is finished, and the printing efficiency is relatively high.

Example 4:

and one blanking mechanism is respectively arranged on two sides of the cross beam. In this embodiment, the two sides of the beam on which the printing mechanism is mounted are respectively provided with a blanking mechanism and integrated on the same blanking guide rail, and the printing mechanism moves back and forth along the blanking guide rail along with the blanking mechanism. Namely, when the right blanking mechanism moves along the JK direction to perform blanking in normal operation, the printing mechanism moves along with the right blanking mechanism to perform printing; and when the blanking mechanism returns to blank along the MN direction, the printing mechanism moves together with the left blanking mechanism and prints. Namely, one set of printing mechanism is matched with two sets of blanking mechanisms to realize continuous printing in the reciprocating direction, and the blanking is respectively executed by the two blanking mechanisms, so that continuous printing operation is not stopped, and the printing operation does not need to be interrupted due to feeding.

Example 5:

two are slidably arranged between the blanking guide rails, the blanking mechanism is arranged between the two beams, an arched gantry mechanism is connected between the two beams in a crossing mode in the vertical direction, the printing mechanism is installed on one beam, and the arched gantry mechanism slides to the other beam. In one embodiment, the arched gantry mechanism comprises an arched slide rail and connecting blocks movably arranged at two ends of the arched slide rail, and the connecting blocks are movably connected with the printing mechanism. Specifically, the printing mechanism includes the sliding block with set up in beat printer head on the sliding block, sliding block movable mounting in print on the guide rail. In a preferred embodiment, the sliding block is rotatably connected with the connecting block. Specifically, the sliding block is installed on printing the guide rail to beat printer head along printing guide rail reciprocating motion along printing the guide rail drive, when needs will beat printer head and pass through the conversion of arch planer-type mechanism to another printing guide rail motion, then first-selected detaches the printing guide rail with the sliding block, and the installation angle of rotating sliding block and connecting block for beat printer head and slide to the printing guide rail department of opposite side along the arch slide rail. Similarly, the slide block is mounted to the printing guide rail on the side, and then the print head is moved along the printing guide rail on the side. In the embodiment, the printing mechanism reciprocates along the blanking guide rail along with the blanking mechanism by arranging the arch gantry mechanism above the blanking mechanism. When the blanking mechanism and the printing mechanism are operated normally, after the printing is finished by one layer along the OP direction, the printing mechanism jumps to the other side of the blanking mechanism through the arched gantry mechanism, and when the blanking mechanism and the printing mechanism return along the QR direction, the blanking and the printing are still carried out synchronously, so that the equipment efficiency is greatly improved. Namely, adopt one set of printing mechanism, realize printing the installation of guide rail at two through arch planer-type mechanism, realize then going back and forth and print simultaneously.

Example 6:

two are slidably arranged between the blanking guide rails, the blanking mechanism is arranged between the two beams, an arched gantry mechanism is connected between one ends of the two beams in a crossing mode along the horizontal direction, the printing mechanism is installed on one beam, and the arched gantry mechanism slides to the other beam. In this embodiment, by arranging the arched gantry mechanism on one side surface of the blanking mechanism, the printing mechanism reciprocates along the blanking guide rail along with the blanking mechanism. In a preferred embodiment, the printing mechanism includes a printing head, a first connecting portion and a second connecting portion, one end of the first connecting portion is connected to the printing head, the first connecting portion is movably disposed on the printing guide rail, the second connecting portion is integrally disposed with the first connecting portion, and the arched gantry mechanism is connected to the second connecting portion. Like this, through the cross-over connection between two crossbeams arch portal mechanism makes print mechanism is connected to arch portal mechanism's one end, and the crossbeam is connected to the other end, and after the drive print head was printed the guide rail roll-off by on the crossbeam of one side, its arch portal mechanism that can set up along the horizontal direction slided to the crossbeam of opposite side on, further through printing guide rail sliding connection on with first connecting portion and the opposite side crossbeam, thereby realizes that print mechanism prints at the opposite side crossbeam. When the blanking mechanism and the printing mechanism are operated normally, after printing in the ST direction synchronously to finish one layer, the printing mechanism rotates to the other side of the blanking mechanism through the arched gantry mechanism, and when the blanking mechanism and the printing mechanism return in the UV direction, blanking and printing are still carried out synchronously, so that the equipment efficiency is greatly improved.

In order to reduce the influence of the vibration amplitude of the blanking mechanism on the printing mechanism in the movement process, in one embodiment, two ends of each cross beam and two ends of each blanking mechanism are respectively provided with a sliding block, and each sliding block is connected with the blanking guide rail in a sliding manner. Namely, the blanking guide rail is provided with double sliding blocks which are respectively connected with the blanking mechanism and the cross beam, so that the amplitude influence of the blanking mechanism on the printing mechanism in the motion process can be reduced, and the printing precision can be improved.

In order to improve the curing speed of the printed product, in one embodiment, a heating element is arranged on the side surface of each blanking mechanism. Wherein, the heating element can be an electric heating ring or an electric heating block. Like this, be favorable to carrying out the rapid hardening to blanking mechanism lower extreme fashioned product through starting the heating member to promote printing efficiency.

Therefore, the printing assembly can design different printing guide rails, blanking mechanisms and different modes of mutual matching of the printing mechanisms according to actual needs in the specific working process, and therefore the printing efficiency of the equipment is greatly improved.

In order to efficiently carry the work box to the printing station, in one embodiment, please refer to fig. 2 to 5, the work box mechanism 300 further includes a moving member 350, and the moving member 350 is connected to the lifting member 320 for carrying the work box 310 and the lifting member 320. In one embodiment, the moving member 350 includes a sliding rail 351, the sliding rail 351 extends and is laid inside the supporting frame 100, and the lifting member 320 is movably disposed on the sliding rail 351. In one embodiment, the two sides of the bottom surface of the mounting platform 330 are symmetrically provided with sliding blocks, and the sliding blocks are arranged on the sliding rails in a matching manner. Therefore, the jacking piece and the working box can integrally move towards or out of the printing station by driving the sliding block to move along the sliding rail. In one embodiment, the bottom of the lifting member 320 is provided with a pulley 352, and the pulley 352 is engaged with the sliding rail 351. Like this, be favorable to realizing steadily carrying work box mechanism more fast through setting up slide rail and pulley cooperation formula. In one embodiment, the moving member 350 includes a roller 353, and the roller 353 is disposed at the bottom of the lifting member 320. Thus, the jacking piece and the working box can integrally move towards or move out of the printing station through the driving roller 353. Preferably, the roller 353 has a stop limit. Therefore, the work box mechanism can be conveniently and stably parked in transportation. It should be noted that the roller 353 and the pulley 352 are different in structure, the pulley is matched with the slide rail to realize rotation transportation, and the roller 353 can directly realize transportation of the work box mechanism through self rotation. Preferably, the work box mechanism 300 further includes a limiting member disposed at the printing station in the supporting frame 100. The movable work box mechanism can be fixed at the back of a work position through the arrangement of the limiting part, then printing work is carried out, so that the quick positioning can be realized, and the work efficiency is improved.

In one embodiment, the moving member further comprises an opening AGV (not shown), the lifting member is accommodated in the AGV inner cavity, and the upper edge of the AGV is in contact connection with the work box. Among them, an AGV (Automated Guided Vehicle) is a Vehicle equipped with an electromagnetic or optical automatic guide device, which can travel along a predetermined guide path and has safety protection and various transfer functions. The upper surface of AGV is middle sunken form, and middle sunken being used for holding the jacking piece, the AGV upper surface with the workbin contact, the AGV periphery is for sealing the form. Like this, because AGV positioning accuracy is higher, can realize not the track motion moreover, so also very be fit for as the moving member, so set up sunken climbing mechanism that holds to make integrative climbing mechanism and work box fix on the AGV, because still realize sand removal work, in view of sand removal work dust is more, best AGV with the work box contact can play the effect of supporting the work box on the one hand like this, and the on the other hand periphery is sealed, when sand removal work goes on, grit and dust just can not enter into AGV and climbing mechanism in addition, thereby extension equipment life.

In order to support the work box more effectively, in one embodiment, referring to fig. 1 again, a roller track 130 is disposed inside the support frame 100, and the roller track 130 is used for carrying the work box 310. It should be noted that the bottom surface area of the work box is larger than the cross-sectional area of the jacking member, so that when the work box is connected with the jacking member, the periphery of the bottom surface of the work box can leave a mounting surface with a certain width, and when the work box and the jacking member are integrally pushed into the supporting frame, two side edges of the bottom surface of the work box can be naturally carried on the rails, so that the pushing speed is accelerated. It should be understood that, because the arrangement of the roller way can decompose a part of the weight of the work box, the pressure of the work box on the jacking piece is reduced, and the work box is supported more effectively. It should be noted here that the roller way, the sliding rail, and the roller wheel or the roller way and the roller wheel may be set simultaneously or separately, and are set as an optimal scheme.

To facilitate timely cleaning of the printing mechanism, in one embodiment, referring again to fig. 1, the 3D printing apparatus further includes a cleaning solution tank 400, and the cleaning solution tank 400 is mounted on the supporting frame 100 and is disposed near the printing mechanism 240. Wherein, the cleaning liquid bin 400 is filled with cleaning liquid. Specifically, the cleaning liquid tank 400 is provided with a cleaning member, and the cleaning member sucks the cleaning liquid in the cleaning liquid tank 400 to wash the printing mechanism, and the specific structure can be referred to the cleaning assembly of the printing mechanism in the prior art, and is not detailed in this embodiment.

In order to facilitate mixing of the printing materials, in one embodiment, please refer to fig. 1 again, the 3D printing apparatus further includes a mixing mechanism 500, and the mixing mechanism 500 is disposed outside the mounting frame 100. Specifically, the mixing mechanism 500 is connected to the blanking mechanism 230. That is, through setting up compounding mechanism 500, in time mix the mechanism material of falling in fact and transport to blanking mechanism to carry out the stone operation.

In order to realize the secondary feeding and avoid the feeding interruption, in one embodiment, please refer to fig. 1 again, a buffer storage bin 600 is further disposed on the mounting frame 100, and the buffer storage bin 600 is connected to the mixing mechanism 500 for feeding the blanking mechanism 230. Specifically, the buffer storage bin 600 is connected with the mixing mechanism 500 through a connecting pipeline, so that the buffer storage bin 600 is compact in structure, simple and convenient to operate, strong in mobility and capable of being flexibly used according to the field condition.

In one embodiment, the mixing mechanism 500 includes a frame, and a raw material bin, a feeding device, a dosing device, a mixing device, and a buffer device disposed on the frame, wherein the raw material bin is communicated with the dosing device through the feeding device, the dosing device is communicated with the mixing device, and the buffer device is communicated with the mixing device.

Specifically, the sand supply equipment is simplified and reduced to the frame, all devices are integrated together, the sand mixing work is completed in a small space, and sand conveying can be performed on the 3D printing equipment. Whole device all integrates on the frame, realizes arranging in less space, and this set of confession sand equipment generally all sets up in 3D printing apparatus top, and the material of being convenient for flows from last to bottom, supplies the sand setting with this set now in 3D printing apparatus side, reduces the height of whole equipment, realizes arranging of little space. The granular materials in the raw material bin, generally sand grains, are transported to the quantifying device through the material conveying device, the quantifying device weighs the granular materials with set amount, the matched liquid and the weighed granular materials are transferred to the mixing device through the matched liquid weighing device, the uniform mixing of the granular materials and the liquid is completed in the mixing device, then the mixed raw materials are transferred to the buffer device, and raw materials are provided for the additive manufacturing equipment.

Preferably, the quantifying device is arranged on the upper portion of the frame and penetrates through the frame to be communicated with the mixing device in the frame, the lower portion of the mixing device is provided with the caching device communicated with the mixing device, the lower portion of the caching device is provided with the raw material bin, and the raw material bin is arranged on the lower portion of the frame.

With former feed bin, the feeding device, the proportioning device, the compounding device, the buffer memory device all sets up on the frame, thereby realize making things convenient for the moving as a whole, convenient experiment or transfer, and space maximize utilizes, the general splendid attire in former feed bin is more, thereby the setting is in the lower part, make things convenient for the feed supplement, then shift the material to the proportioning device through the feeding device, the proportioning device just sets up in the top, when guaranteeing the title material precision, do benefit to follow-up material and smoothly flow from top to bottom and shift, the compounding device just is held in middle space, realize the even mixing of material, the level of buffer memory device and 3D printing apparatus's the high phase-match of sand-laying ware, thereby realize the material transfer. The whole layout is compact and scientific in design, the space is utilized to the maximum extent, and the occupied space is saved.

Preferably, the material conveying device is at least one of a negative pressure material suction device, a vacuum material suction device or a flood dragon conveying device.

The transportation of materials from bottom to top is realized by utilizing the material conveying device, in order to improve the efficiency and reduce the limitation of the shape, the materials are generally transferred in a negative pressure material suction or vacuum material suction mode, in order to simplify the structure and weight, a flood dragon conveying mode can be selected, and in short, the materials are transferred to the quantitative device from the raw material bin to the top in a proper mode.

Preferably, the device further comprises a moving device, wherein the moving device is arranged at the bottom of at least one of the frame or the raw material bin and drives at least one of the frame or the raw material bin to move.

For more convenient movement, a moving device can be arranged at the lower part of the frame and the raw material bin, namely a rail or a pulley and other devices which are convenient to move can be arranged to facilitate the movement of the frame, or the raw material bin can be conveniently moved in and out of the frame.

Preferably, the mixing device comprises a barrel body and a stirring device, the stirring device is arranged in the barrel body, the bottom surface of the barrel body is an inclined plane inclined towards the discharge port, and the discharge port is communicated with the cache device.

The bottom surface of the mixing device is arranged to incline towards the discharge hole, so that the materials can conveniently flow to the caching device, the mixed materials can be emptied completely, and the materials can be transferred more rapidly.

Preferably, the raw material bin is divided into at least two independent spaces with upward openings.

What deposit in the former feed bin is used sand and new sand, when the vibration material disk printing work goes on, use after mixing new sand and used sand, can practice thrift the cost, can leave in the former feed bin after mixing new sand and used sand, also can divide into two spaces with former feed bin, directly separately deposit new sand and used sand, then carry to proportioning device through the feeding device according to the proportion respectively, accomplish mixing work.

Preferably, the space of the raw material bin is a conical space with a small lower part and a large upper part, and one end of the material conveying device is arranged at the bottom of the conical space of the raw material bin.

In order to match with a material conveying device, granular materials in a raw material bin are completely transferred as much as possible, the space of the raw material bin is designed to be conical, so that the materials can automatically slide down along with the reduction of the materials and then enter the material conveying device, and the materials can be completely transferred as much as possible.

Preferably, the frame includes support body, stopper, the support body with former feed bin matches the position mutually and is one side opening form, and the opening is used for former feed bin business turn over the support body, the relative one side of opening set up the stopper on the support body, the stopper with former feed bin elastic contact, the stopper is made by flexible elastic material.

Former feed bin designs into push-and-pull drawer form, advances out the frame, because former feed bin weight is heavier, for protecting the frame, designs the stopper, and the stopper is elastic material and makes to when former feed bin business turn over frame, play the cushioning effect.

Preferably, the frame still includes the leading wheel, support body opening both sides set up the leading wheel, the leading wheel with former feed bin contact, the leading wheel direction of rotation with former feed bin business turn over support body direction phase-match.

In order to facilitate the raw material bin to enter and exit the frame more conveniently, guide wheels on two sides are designed, so that a guiding effect is achieved, and the heavy raw material bin can be located more quickly and safely.

Preferably, the mixing device further comprises a liquid quantifying device, the liquid quantifying device is arranged on one side of the mixing device, and the liquid quantifying device is communicated with the mixing device.

The liquid dosing device provides liquid for the mixing device to mix with particulate matter in the raw materials bin.

In order to facilitate high concentration between components of the 3D printing apparatus, in one embodiment, the support frame 100 is further provided with an electric control cabinet 700. Therefore, the electric control cabinet 700 is arranged on the supporting frame, so that the operation of operators is facilitated, the height of the whole equipment is concentrated, and the working efficiency is further effectively improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A3D printing device, characterized in that, the 3D printing device includes: the printing device comprises a supporting frame, a printing assembly and a work box mechanism, wherein the printing assembly is integrated on the supporting frame;

the printing assembly comprises symmetrically arranged blanking guide rails, a plurality of printing guide rails, a plurality of blanking mechanisms and a plurality of printing mechanisms, each printing guide rail and each blanking mechanism are respectively arranged between two blanking guide rails, and at least one printing guide rail is provided with one printing mechanism in a sliding manner;

the two blanking guide rails are arranged on two symmetrical sides of the supporting frame;

the work box mechanism comprises a work box and a jacking piece, the work box and the jacking piece are integrally arranged, the jacking piece is used for jacking a bottom plate of the work box to lift along the vertical direction, and the work box and the jacking piece are movably arranged in the supporting frame in a penetrating mode.

2. The 3D printing apparatus according to claim 1, wherein at least one beam is disposed between two of the blanking rails, and each beam is correspondingly mounted with one of the printing rails.

3. The 3D printing apparatus of claim 2, wherein the work box mechanism further comprises a moving member connected with the jacking member for carrying the work box and the jacking member.

4. The 3D printing apparatus according to claim 3, wherein the moving member includes a slide rail extending to be laid inside the supporting frame, and the jacking member is movably disposed on the slide rail.

5. The 3D printing apparatus according to claim 4, wherein a bottom of the jacking member is provided with a pulley, and the pulley is provided in cooperation with the slide rail.

6. The 3D printing apparatus of claim 3, wherein the moving member comprises a roller mounted to a bottom of the jacking member.

7. 3D printing apparatus according to claim 2, wherein the support frame is internally provided with a roller table for carrying the work box.

8. The 3D printing apparatus of claim 1, further comprising a cleaning solution tank mounted on the support frame and disposed proximate to the printing mechanism.

9. The 3D printing apparatus according to claim 1, further comprising a mixing mechanism disposed outside the support frame.

10. The 3D printing apparatus according to claim 9, wherein a buffer storage bin is further disposed on the support frame, and the buffer storage bin is connected to the material mixing mechanism and used for feeding the material to the material dropping mechanism.